Finding the Fourth Proportional to 86,061.60, 129,053.52 and 30,659.04

Step by Step Solution

1. Step 1: Write the proportion equation
   86,061.60 : 129,053.52 = 30,659.04 : x
2. Step 2: Convert to fraction form
   86,061.60/129,053.52 = 30,659.04/x
3. Step 3: Cross multiply
   86,061.60x = 129,053.52 × 30,659.04
4. Step 4: Simplify right side
   86,061.60x = 3,956,657,031.82
5. Step 5: Solve for x
   x = 3,956,657,031.82/86,061.60
6. Step 6: Final answer
   x = 45,974.71