Finding the Fourth Proportional to 42,977.32, 64,564.80 and 30,527.62

Step by Step Solution

1. Step 1: Write the proportion equation
   42,977.32 : 64,564.80 = 30,527.62 : x
2. Step 2: Convert to fraction form
   42,977.32/64,564.80 = 30,527.62/x
3. Step 3: Cross multiply
   42,977.32x = 64,564.80 × 30,527.62
4. Step 4: Simplify right side
   42,977.32x = 1,971,009,679.78
5. Step 5: Solve for x
   x = 1,971,009,679.78/42,977.32
6. Step 6: Final answer
   x = 45,861.62