Finding the Fourth Proportional to 61,152,034.10, 91,728,051.15 and 56,475,353.30

Step by Step Solution

1. Step 1: Write the proportion equation
   61,152,034.10 : 91,728,051.15 = 56,475,353.30 : x
2. Step 2: Convert to fraction form
   61,152,034.10/91,728,051.15 = 56,475,353.30/x
3. Step 3: Cross multiply
   61,152,034.10x = 91,728,051.15 × 56,475,353.30
4. Step 4: Simplify right side
   61,152,034.10x = 5,180,374,096,216,721
5. Step 5: Solve for x
   x = 5,180,374,096,216,721/61,152,034.10
6. Step 6: Final answer
   x = 84,713,029.95