Finding the Fourth Proportional to 60,783,471.69, 91,211,519.98 and 55,838,238.23

Step by Step Solution

1. Step 1: Write the proportion equation
   60,783,471.69 : 91,211,519.98 = 55,838,238.23 : x
2. Step 2: Convert to fraction form
   60,783,471.69/91,211,519.98 = 55,838,238.23/x
3. Step 3: Cross multiply
   60,783,471.69x = 91,211,519.98 × 55,838,238.23
4. Step 4: Simplify right side
   60,783,471.69x = 5,093,090,581,963,645
5. Step 5: Solve for x
   x = 5,093,090,581,963,645/60,783,471.69
6. Step 6: Final answer
   x = 83,790,715.48