Finding the Fourth Proportional to 191,980.29, 288,025.71 and 58,880.07

Step by Step Solution

1. Step 1: Write the proportion equation
   191,980.29 : 288,025.71 = 58,880.07 : x
2. Step 2: Convert to fraction form
   191,980.29/288,025.71 = 58,880.07/x
3. Step 3: Cross multiply
   191,980.29x = 288,025.71 × 58,880.07
4. Step 4: Simplify right side
   191,980.29x = 16,958,973,966.60
5. Step 5: Solve for x
   x = 16,958,973,966.60/191,980.29
6. Step 6: Final answer
   x = 88,337.06