Finding the Fourth Proportional to 76,784.68, 115,186.72 and 30,031.48

Step by Step Solution

1. Step 1: Write the proportion equation
   76,784.68 : 115,186.72 = 30,031.48 : x
2. Step 2: Convert to fraction form
   76,784.68/115,186.72 = 30,031.48/x
3. Step 3: Cross multiply
   76,784.68x = 115,186.72 × 30,031.48
4. Step 4: Simplify right side
   76,784.68x = 3,459,227,677.95
5. Step 5: Solve for x
   x = 3,459,227,677.95/76,784.68
6. Step 6: Final answer
   x = 45,051.01