Finding the Fourth Proportional to 21,680,117.32, 32,523,150.28 and 12,586,483.84

Step by Step Solution

1. Step 1: Write the proportion equation
   21,680,117.32 : 32,523,150.28 = 12,586,483.84 : x
2. Step 2: Convert to fraction form
   21,680,117.32/32,523,150.28 = 12,586,483.84/x
3. Step 3: Cross multiply
   21,680,117.32x = 32,523,150.28 × 12,586,483.84
4. Step 4: Simplify right side
   21,680,117.32x = 409,352,105,425,111.50
5. Step 5: Solve for x
   x = 409,352,105,425,111.50/21,680,117.32
6. Step 6: Final answer
   x = 18,881,452.50