Finding the Fourth Proportional to 91,645,601.76, 126,475,470.50 and 56,849,503.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,645,601.76 : 126,475,470.50 = 56,849,503.50 : x
2. Step 2: Convert to fraction form
   91,645,601.76/126,475,470.50 = 56,849,503.50/x
3. Step 3: Cross multiply
   91,645,601.76x = 126,475,470.50 × 56,849,503.50
4. Step 4: Simplify right side
   91,645,601.76x = 7,190,067,702,569,650
5. Step 5: Solve for x
   x = 7,190,067,702,569,650/91,645,601.76
6. Step 6: Final answer
   x = 78,455,131.12