Finding the Fourth Proportional to 47,820.63, 65,953.18 and 42,447

Step by Step Solution

1. Step 1: Write the proportion equation
   47,820.63 : 65,953.18 = 42,447 : x
2. Step 2: Convert to fraction form
   47,820.63/65,953.18 = 42,447/x
3. Step 3: Cross multiply
   47,820.63x = 65,953.18 × 42,447
4. Step 4: Simplify right side
   47,820.63x = 2,799,514,631.46
5. Step 5: Solve for x
   x = 2,799,514,631.46/47,820.63
6. Step 6: Final answer
   x = 58,541.99