Finding the Fourth Proportional to 42,671.34, 64,008.18 and 11,506.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,671.34 : 64,008.18 = 11,506.50 : x
2. Step 2: Convert to fraction form
   42,671.34/64,008.18 = 11,506.50/x
3. Step 3: Cross multiply
   42,671.34x = 64,008.18 × 11,506.50
4. Step 4: Simplify right side
   42,671.34x = 736,510,123.17
5. Step 5: Solve for x
   x = 736,510,123.17/42,671.34
6. Step 6: Final answer
   x = 17,260.07