Finding the Fourth Proportional to 152,492.80, 213,075.20 and 152,492.80

Step by Step Solution

1. Step 1: Write the proportion equation
   152,492.80 : 213,075.20 = 152,492.80 : x
2. Step 2: Convert to fraction form
   152,492.80/213,075.20 = 152,492.80/x
3. Step 3: Cross multiply
   152,492.80x = 213,075.20 × 152,492.80
4. Step 4: Simplify right side
   152,492.80x = 32,492,433,858.56
5. Step 5: Solve for x
   x = 32,492,433,858.56/152,492.80
6. Step 6: Final answer
   x = 213,075.20