Finding the Fourth Proportional to 42,219,076.61, 63,369,566.33 and 20,374,828.58

Step by Step Solution

1. Step 1: Write the proportion equation
   42,219,076.61 : 63,369,566.33 = 20,374,828.58 : x
2. Step 2: Convert to fraction form
   42,219,076.61/63,369,566.33 = 20,374,828.58/x
3. Step 3: Cross multiply
   42,219,076.61x = 63,369,566.33 × 20,374,828.58
4. Step 4: Simplify right side
   42,219,076.61x = 1,291,144,051,162,689.50
5. Step 5: Solve for x
   x = 1,291,144,051,162,689.50/42,219,076.61
6. Step 6: Final answer
   x = 30,582,005.93