Finding the Fourth Proportional to 45,139,790.78, 62,311,980.25 and 30,475,320.18

Step by Step Solution

1. Step 1: Write the proportion equation
   45,139,790.78 : 62,311,980.25 = 30,475,320.18 : x
2. Step 2: Convert to fraction form
   45,139,790.78/62,311,980.25 = 30,475,320.18/x
3. Step 3: Cross multiply
   45,139,790.78x = 62,311,980.25 × 30,475,320.18
4. Step 4: Simplify right side
   45,139,790.78x = 1,898,977,549,168,586.50
5. Step 5: Solve for x
   x = 1,898,977,549,168,586.50/45,139,790.78
6. Step 6: Final answer
   x = 42,068,815.92