Finding the Fourth Proportional to 103,364.00, 142,638.71 and 63,145.07

Step by Step Solution

1. Step 1: Write the proportion equation
   103,364.00 : 142,638.71 = 63,145.07 : x
2. Step 2: Convert to fraction form
   103,364.00/142,638.71 = 63,145.07/x
3. Step 3: Cross multiply
   103,364.00x = 142,638.71 × 63,145.07
4. Step 4: Simplify right side
   103,364.00x = 9,006,930,298.74
5. Step 5: Solve for x
   x = 9,006,930,298.74/103,364.00
6. Step 6: Final answer
   x = 87,137.99