Finding the Fourth Proportional to 60,938.61, 91,389.28 and 21,486.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,938.61 : 91,389.28 = 21,486.50 : x
2. Step 2: Convert to fraction form
   60,938.61/91,389.28 = 21,486.50/x
3. Step 3: Cross multiply
   60,938.61x = 91,389.28 × 21,486.50
4. Step 4: Simplify right side
   60,938.61x = 1,963,635,307.77
5. Step 5: Solve for x
   x = 1,963,635,307.77/60,938.61
6. Step 6: Final answer
   x = 32,223.17