Finding the Fourth Proportional to 152,215.81, 210,142.28 and 91,801.82

Step by Step Solution

1. Step 1: Write the proportion equation
   152,215.81 : 210,142.28 = 91,801.82 : x
2. Step 2: Convert to fraction form
   152,215.81/210,142.28 = 91,801.82/x
3. Step 3: Cross multiply
   152,215.81x = 210,142.28 × 91,801.82
4. Step 4: Simplify right side
   152,215.81x = 19,291,443,303.94
5. Step 5: Solve for x
   x = 19,291,443,303.94/152,215.81
6. Step 6: Final answer
   x = 126,737.45