Finding the Fourth Proportional to 105,337,196.72, 145,365,544.86 and 58,928,225.68

Step by Step Solution

1. Step 1: Write the proportion equation
   105,337,196.72 : 145,365,544.86 = 58,928,225.68 : x
2. Step 2: Convert to fraction form
   105,337,196.72/145,365,544.86 = 58,928,225.68/x
3. Step 3: Cross multiply
   105,337,196.72x = 145,365,544.86 × 58,928,225.68
4. Step 4: Simplify right side
   105,337,196.72x = 8,566,133,633,606,245
5. Step 5: Solve for x
   x = 8,566,133,633,606,245/105,337,196.72
6. Step 6: Final answer
   x = 81,321,070.81