Finding the Fourth Proportional to 77,815.89, 107,384.46 and 47,598.99

Step by Step Solution

1. Step 1: Write the proportion equation
   77,815.89 : 107,384.46 = 47,598.99 : x
2. Step 2: Convert to fraction form
   77,815.89/107,384.46 = 47,598.99/x
3. Step 3: Cross multiply
   77,815.89x = 107,384.46 × 47,598.99
4. Step 4: Simplify right side
   77,815.89x = 5,111,391,837.70
5. Step 5: Solve for x
   x = 5,111,391,837.70/77,815.89
6. Step 6: Final answer
   x = 65,685.71