Finding the Fourth Proportional to 60,697,730.10, 91,046,595.15 and 54,320,438.10

Step by Step Solution

1. Step 1: Write the proportion equation
   60,697,730.10 : 91,046,595.15 = 54,320,438.10 : x
2. Step 2: Convert to fraction form
   60,697,730.10/91,046,595.15 = 54,320,438.10/x
3. Step 3: Cross multiply
   60,697,730.10x = 91,046,595.15 × 54,320,438.10
4. Step 4: Simplify right side
   60,697,730.10x = 4,945,690,936,061,336
5. Step 5: Solve for x
   x = 4,945,690,936,061,336/60,697,730.10
6. Step 6: Final answer
   x = 81,480,657.15