Finding the Fourth Proportional to 152,130.15, 210,111.91 and 103,647.94

Step by Step Solution

1. Step 1: Write the proportion equation
   152,130.15 : 210,111.91 = 103,647.94 : x
2. Step 2: Convert to fraction form
   152,130.15/210,111.91 = 103,647.94/x
3. Step 3: Cross multiply
   152,130.15x = 210,111.91 × 103,647.94
4. Step 4: Simplify right side
   152,130.15x = 21,777,665,856.57
5. Step 5: Solve for x
   x = 21,777,665,856.57/152,130.15
6. Step 6: Final answer
   x = 143,151.54