Finding the Fourth Proportional to 72,657,722.10, 109,138,215.15 and 61,320,314.10

Step by Step Solution

1. Step 1: Write the proportion equation
   72,657,722.10 : 109,138,215.15 = 61,320,314.10 : x
2. Step 2: Convert to fraction form
   72,657,722.10/109,138,215.15 = 61,320,314.10/x
3. Step 3: Cross multiply
   72,657,722.10x = 109,138,215.15 × 61,320,314.10
4. Step 4: Simplify right side
   72,657,722.10x = 6,692,389,633,311,379
5. Step 5: Solve for x
   x = 6,692,389,633,311,379/72,657,722.10
6. Step 6: Final answer
   x = 92,108,442.71