Finding the Fourth Proportional to 103,719.60, 143,080.56 and 60,670.94

Step by Step Solution

1. Step 1: Write the proportion equation
   103,719.60 : 143,080.56 = 60,670.94 : x
2. Step 2: Convert to fraction form
   103,719.60/143,080.56 = 60,670.94/x
3. Step 3: Cross multiply
   103,719.60x = 143,080.56 × 60,670.94
4. Step 4: Simplify right side
   103,719.60x = 8,680,831,355.52
5. Step 5: Solve for x
   x = 8,680,831,355.52/103,719.60
6. Step 6: Final answer
   x = 83,695.19