Finding the Fourth Proportional to 99,790.76, 137,707.82 and 59,483.75

Step by Step Solution

1. Step 1: Write the proportion equation
   99,790.76 : 137,707.82 = 59,483.75 : x
2. Step 2: Convert to fraction form
   99,790.76/137,707.82 = 59,483.75/x
3. Step 3: Cross multiply
   99,790.76x = 137,707.82 × 59,483.75
4. Step 4: Simplify right side
   99,790.76x = 8,191,376,849.39
5. Step 5: Solve for x
   x = 8,191,376,849.39/99,790.76
6. Step 6: Final answer
   x = 82,085.52