Finding the Fourth Proportional to 77,870.34, 107,463.18 and 47,655.06

Step by Step Solution

1. Step 1: Write the proportion equation
   77,870.34 : 107,463.18 = 47,655.06 : x
2. Step 2: Convert to fraction form
   77,870.34/107,463.18 = 47,655.06/x
3. Step 3: Cross multiply
   77,870.34x = 107,463.18 × 47,655.06
4. Step 4: Simplify right side
   77,870.34x = 5,121,164,290.69
5. Step 5: Solve for x
   x = 5,121,164,290.69/77,870.34
6. Step 6: Final answer
   x = 65,765.27