Finding the Fourth Proportional to 105,510,196.92, 145,604,926.81 and 58,468,056.28

Step by Step Solution

1. Step 1: Write the proportion equation
   105,510,196.92 : 145,604,926.81 = 58,468,056.28 : x
2. Step 2: Convert to fraction form
   105,510,196.92/145,604,926.81 = 58,468,056.28/x
3. Step 3: Cross multiply
   105,510,196.92x = 145,604,926.81 × 58,468,056.28
4. Step 4: Simplify right side
   105,510,196.92x = 8,513,237,055,372,361
5. Step 5: Solve for x
   x = 8,513,237,055,372,361/105,510,196.92
6. Step 6: Final answer
   x = 80,686,391.49