Finding the Fourth Proportional to 77,575, 107,053.50 and 42,247

Step by Step Solution

1. Step 1: Write the proportion equation
   77,575 : 107,053.50 = 42,247 : x
2. Step 2: Convert to fraction form
   77,575/107,053.50 = 42,247/x
3. Step 3: Cross multiply
   77,575x = 107,053.50 × 42,247
4. Step 4: Simplify right side
   77,575x = 4,522,689,214.50
5. Step 5: Solve for x
   x = 4,522,689,214.50/77,575
6. Step 6: Final answer
   x = 58,300.86