Finding the Fourth Proportional to 1,111,443,482.88, 1,533,544,876.80 and 641,445,246.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111,443,482.88 : 1,533,544,876.80 = 641,445,246.72 : x
2. Step 2: Convert to fraction form
   1,111,443,482.88/1,533,544,876.80 = 641,445,246.72/x
3. Step 3: Cross multiply
   1,111,443,482.88x = 1,533,544,876.80 × 641,445,246.72
4. Step 4: Simplify right side
   1,111,443,482.88x = 983,685,071,855,168,000
5. Step 5: Solve for x
   x = 983,685,071,855,168,000/1,111,443,482.88
6. Step 6: Final answer
   x = 885,051,815.06